Double passing the Kitt Peak 1-m Fourier transform spectrometer

Details Double passing the Kitt Peak 1-m Fourier transform spectrometer Double passing the Kitt Peak 1-m Fourier transform spectrometer

Nov 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apopt..24.3438j&link_type=abstract

Applied Optics (ISSN 0003-6935), vol. 24, Nov. 1, 1985, p. 3438-3440. NASA-supported research.

Physics

Optics

18

Astronomical Spectroscopy, Fourier Transformation, Spectrometers, Mirrors, Molecular Spectra, Polyatomic Molecules

Scientific paper

Attention is given to a simple technique for performing the conversion of the Kitt Peak 1-m Fourier transform spectrometer's dual input/output optical configuration to a double pass configuration that improves spectral resolution by a factor of 2. The modification is made by placing a flat mirror in the output beam from each cat's eye, retroreflecting the beams back through the cat's eyes to the first beam splitter. A single detector is placed at the second input port, which then becomes the instrument's output.

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